error: expected one of `:`, `@`, or `|`, found `<` --> $DIR/issue-34264.rs:1:14 | LL | fn foo(Option, String) {} | ^ expected one of `:`, `@`, or `|` | = note: anonymous parameters are removed in the 2018 edition (see RFC 1685) help: if this is a `self` type, give it a parameter name | LL | fn foo(self: Option, String) {} | +++++ help: if this is a type, explicitly ignore the parameter name | LL | fn foo(_: Option, String) {} | ++ error: expected one of `:`, `@`, or `|`, found `)` --> $DIR/issue-34264.rs:1:27 | LL | fn foo(Option, String) {} | ^ expected one of `:`, `@`, or `|` | = note: anonymous parameters are removed in the 2018 edition (see RFC 1685) help: if this is a parameter name, give it a type | LL | fn foo(Option, String: TypeName) {} | ++++++++++ help: if this is a type, explicitly ignore the parameter name | LL | fn foo(Option, _: String) {} | ++ error: expected one of `:`, `@`, or `|`, found `,` --> $DIR/issue-34264.rs:3:9 | LL | fn bar(x, y: usize) {} | ^ expected one of `:`, `@`, or `|` | = note: anonymous parameters are removed in the 2018 edition (see RFC 1685) help: if this is a `self` type, give it a parameter name | LL | fn bar(self: x, y: usize) {} | +++++ help: if this is a parameter name, give it a type | LL | fn bar(x: TypeName, y: usize) {} | ++++++++++ help: if this is a type, explicitly ignore the parameter name | LL | fn bar(_: x, y: usize) {} | ++ error[E0061]: this function takes 2 arguments but 3 arguments were supplied --> $DIR/issue-34264.rs:7:5 | LL | foo(Some(42), 2, ""); | ^^^ -- argument of type `&'static str` unexpected | note: function defined here --> $DIR/issue-34264.rs:1:4 | LL | fn foo(Option, String) {} | ^^^ ----------- ------ help: remove the extra argument | LL | foo(Some(42), 2); | ~~~~~~~~~~~~~ error[E0308]: mismatched types --> $DIR/issue-34264.rs:8:13 | LL | bar("", ""); | --- ^^ expected `usize`, found `&str` | | | arguments to this function are incorrect | note: function defined here --> $DIR/issue-34264.rs:3:4 | LL | fn bar(x, y: usize) {} | ^^^ -------- error[E0061]: this function takes 2 arguments but 3 arguments were supplied --> $DIR/issue-34264.rs:10:5 | LL | bar(1, 2, 3); | ^^^ - argument of type `{integer}` unexpected | note: function defined here --> $DIR/issue-34264.rs:3:4 | LL | fn bar(x, y: usize) {} | ^^^ - -------- help: remove the extra argument | LL | bar(1, 2); | ~~~~~~ error: aborting due to 6 previous errors Some errors have detailed explanations: E0061, E0308. For more information about an error, try `rustc --explain E0061`.